Unfortunately, it's an original 307 2-barrel car
It was converted WAY back in the 1980's, one piece at a time ( before the real SS396 cars became high dollar cars) just to have some fun. It has all the right parts now, looks like a 69 SS396, with a 427 under the hood. The 69 H/O is a 27,000 mile car, and the Carousel Red (Hugger Orange to the Chevy guys) is my Firebird 400.